text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  'use strict';
  
  /**
  * Square root of `1/2`.
  *
  * @module @stdlib/constants/float64/sqrt-half
  * @type {number}
  *
  * @example
  * var SQRT_HALF = require( '@stdlib/constants/float64/sqrt-half' );
  * // returns 0.7071067811865476
  */
  
  
  // MAIN //
  
  /**
  * Square root of `1/2`.
  *
  * ```tex
  * \sqrt{\frac{1}{2}}
  * ```
  *
  * @constant
  * @type {number}
  * @default 0.7071067811865476
  */
  var SQRT_HALF = 7.07106781186547524400844362104849039284835937688474036588339868995366239231053519425193767163820786367506923115e-01; // eslint-disable-line max-len
  
  
  // EXPORTS //
  
  module.exports = SQRT_HALF;
  